CN215756243U

CN215756243U - A bearing platform that falls for elevartor shaft

Info

Publication number: CN215756243U
Application number: CN202121141148.9U
Authority: CN
Inventors: 余梦山; 姜修涛; 徐先伟; 邵娜; 罗思峰; 刘侠飞; 王沛君; 李浩远; 张智博; 蒋园园
Original assignee: First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-02-08
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses an anti-falling bearing platform for an elevator shaft, and relates to the technical field of anti-falling of the elevator shaft bearing platform. The utility model has the beneficial effects that: the device provides a falling-prevention bearing platform for an elevator shaft, and the distance between two hard rubber blocks is adjusted through a blocking falling-prevention mechanism, so that when the bearing platform needs to be lifted and climbed, the friction force between the blocking falling-prevention mechanism and the wall body of the elevator shaft is reduced, and the bearing platform can be smoothly lifted upwards; when arriving the assigned position, the increase is blocked and is prevented the frictional force between mechanism and the elevartor shaft wall body of falling to fixed support body, convenient to use, it is safe high-efficient.

Description

A bearing platform that falls for elevartor shaft

Technical Field

The utility model relates to the technical field of falling prevention of an elevator shaft bearing platform, in particular to a falling prevention bearing platform for an elevator shaft.

Background

At present, steel pipes are mostly adopted to erect a support body for an elevator shaft bearing platform, and a steel plate is laid above the support body to serve as a bearing surface. In the construction operation, a plurality of frame bodies need to be erected, each layer needs to be erected, the used materials are more, the manual use is more, and the construction cost is not reduced;

and one of the hidden danger of elevator shaft bearing platform emergence safety is because under the long-term use or the improper condition of maintenance, the condition that the wire rope disconnection probably can appear, and anti-falling device mainly relies on anti-falling device, lower limit travel switch and three-phase limit switch at present, and the electrical apparatus of these structures is inefficacy easily under the circumstances of outage, and current anti-falling device sensitivity is relatively poor moreover, produces lags behind or the error easily, greatly influences the safety of staff's construction.

SUMMERY OF THE UTILITY MODEL

In order to achieve the purpose of the utility model and solve the technical problem, the utility model provides a falling-prevention bearing platform for an elevator shaft.

The technical scheme includes that the anti-falling device comprises a bearing platform, a traction mechanism arranged at the top of the bearing platform and a blocking anti-falling mechanism arranged on the bearing platform, wherein the bearing platform comprises a bearing frame body and a bearing top plate arranged above the bearing frame body;

the retarding anti-falling mechanism comprises a shell, a gear column is vertically arranged in the shell, a rack which is vertically distributed is arranged on one side of the gear column, a large gear is meshed with one side of the gear column, the large gear is vertically arranged, a small gear is coaxially arranged on the large gear, horizontal inserting strips are respectively arranged on the top and the bottom of the small gear, one side of each inserting strip, which faces the small gear, is provided with a rack which is horizontally distributed, and the small gear is meshed with the rack part on each inserting strip;

the anti-falling mechanism further comprises two sliding blocks symmetrically arranged about the pinion, the sliding blocks are connected with the inner portion of the shell in a sliding mode, the two inserting strips are fixedly arranged on the two opposite side faces of the sliding blocks, horizontal sliding plates are fixedly arranged on the side faces of the sliding blocks provided with the inserting strips, the two sliding plates are respectively located above and below the inserting strips, a steel bar block is fixedly arranged on one side, away from the pinion, of each sliding block, and a hard rubber block is fixedly arranged on the outer portion of each steel bar block.

The main rope is composed of a steel cable with the diameter of 2cm, and the auxiliary rope is composed of a steel cable with the diameter of 1.5 cm; the bearing frame body is made of 80-8 cm square steel and is formed by welding, and the welding part is subjected to anticorrosion treatment; the steel bar block is connected with the sliding block in a welding mode, and the steel bar block is connected with the hard rubber block in a riveting mode.

The bull gear is coaxially provided with a bearing, and the outer ring of the bearing is fixedly connected with the shell. The large gear and the small gear are driven by a bearing; the radius ratio of the small gear to the large gear is 1:6, namely the weight of the balance weight and the pressure of the hard rubber block on the wall body are 1: 6.

The shell with bearing support body adopts welded mode fixed connection, the slip track has been seted up on two upper and lower surfaces of shell, gear strip post and slip track sliding connection.

The hoisting device is characterized in that hoisting rings are fixedly arranged on four side faces and an upper face and a lower face of the hoisting hoist, and the hoisting rings are fixedly arranged at four corners of the top of the bearing frame body.

And saddle buckles are arranged at the two ends of the main rope, the bearing platform rope and the auxiliary rope.

One end of the main rope is connected with a lifting ring at the top of the hoisting hoist, and the other end of the main rope is connected with a tower crane lifting hook during hoisting and climbing; one end of the auxiliary rope is connected with a hanging ring at the bottom of the hoisting hoist, and the other end of the auxiliary rope is connected with a hanging ring at the top of the bearing frame body.

The bearing top plate is made of a square steel plate. The bearing top plate plays the role of a balance weight at the same time.

The two sets of the anti-falling blocking mechanisms are arranged on the bearing frame body in a parallel and inverted manner, and gear bars of the two sets of the anti-falling blocking mechanisms are positioned at two ends of a diagonal line of the bearing frame body.

The inner wall of the shell is provided with a sliding track matched with the sliding block, and the top of the gear bar column is fixedly connected with the lower surface of the bearing top plate.

The technical scheme provided by the embodiment of the utility model has the following beneficial effects: when the bearing platform needs to be lifted and climbed, a rope of the bearing platform is tightened through a hoist hoisting device, the distance between a bearing top plate and a bearing frame body is increased, and the distance between two hard rubber blocks is shortened, so that the friction between a retarding and anti-falling mechanism and the wall body of the elevator shaft is reduced, and the bearing platform can be smoothly lifted upwards; when arriving the assigned position, use calabash hoisting equipment to relax the bearing platform rope, the distance of bearing roof and bearing support body is dwindled, and the distance between two hard rubber pieces also increases to the increase is blocked the frictional force between falling mechanism and the elevartor shaft wall body of preventing, thereby fixes the support body, convenient to use, and safe high efficiency, bearing platform can have enough to meet the need the use, reduces setting up of support body, reduces the material lease, reduces construction cost.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a block anti-fall mechanism according to an embodiment of the utility model.

FIG. 3 is a schematic diagram of a fall arrest mechanism of a concealed housing according to an embodiment of the present invention.

Wherein the reference numerals are: 1. a main rope; 2. hoisting a hoist; 3. a secondary rope; 5. a load bearing top plate; 6. a bearing frame body; 7. a hoisting ring; 8. a load-bearing platform rope; 9. a retardation fall prevention mechanism; 10. a gear bar; 11. a housing; 12. a bearing; 13. a steel bar block; 14. a hard rubber block; 15. a sliding block; 16. a sliding plate; 17. cutting; 18. a pinion gear; 19. and a gearwheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the utility model and are not intended to be limiting.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the utility model, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

Referring to fig. 1 to 3, the utility model provides an anti-falling bearing platform for an elevator shaft, which comprises a bearing platform, a traction mechanism arranged at the top of the bearing platform and a retarding anti-falling mechanism 9 arranged on the bearing platform, wherein the bearing platform comprises a bearing frame body 6 and a bearing top plate 5 arranged above the bearing frame body 6, the traction mechanism comprises a hoisting hoist 2 arranged above the bearing platform, the upper surface of the hoisting hoist 2 is connected with a main rope 1, the lower surface of the hoisting hoist is connected with a bearing platform rope 8, four side surfaces of the hoisting hoist 2 are respectively connected with auxiliary ropes 3, the bearing platform rope 8 is connected between the hoisting hoist 2 and the bearing top plate 5, and the auxiliary ropes 3 are connected between the hoisting hoist 2 and four corners at the top of the bearing frame body 6;

the retarding anti-falling mechanism 9 comprises a shell 11, a gear column 10 is vertically arranged in the shell 11, vertically distributed racks are arranged on one side of the gear column 10, a large gear 19 is meshed on one side of the gear column 10, the large gear 19 is vertically arranged, a small gear 18 is coaxially arranged on the large gear 19, horizontal inserting strips 17 are respectively arranged at the top and the bottom of the small gear 18, horizontally distributed racks are arranged on one side, facing the small gear 18, of the inserting strips 17, and the small gear 18 is meshed with the rack part on the inserting strips 17;

the block anti-falling mechanism 9 further comprises two sliding blocks 15 symmetrically arranged about the pinion 18, the sliding blocks 15 are connected with the inside of the shell 11 in a sliding mode, two inserting strips 17 are fixedly arranged on the opposite side faces of the two sliding blocks 15, horizontal sliding plates 16 are further fixedly arranged on the side faces of the sliding blocks 15 provided with the inserting strips 17, the two sliding plates 16 are respectively located above and below the inserting strips 17, a steel bar block 13 is fixedly arranged on one side, away from the pinion 18, of each sliding block 15, and a hard rubber block 14 is fixedly arranged outside each steel bar block 13.

The main rope 1 is made of a steel cable with the diameter of 2cm, and the auxiliary rope 3 is made of a steel cable with the diameter of 1.5 cm; the bearing frame body 6 is made of 80-8 cm square steel, the bearing frame body 6 is formed by welding, and the welding part is subjected to anticorrosion treatment; the steel bar block 13 is connected with the sliding block 15 in a welding mode, and the steel bar block 13 is connected with the hard rubber block 14 in a riveting mode.

The gearwheel 19 is coaxially provided with a bearing 12, and the outer ring of the bearing 12 is fixedly connected with the housing 11. The large gear 19 and the small gear 18 are driven by the bearing 12; the radius ratio of the small gear 18 to the large gear 19 is 1:6, namely the weight of the counterweight and the pressure of the hard rubber block 14 on the wall body are 1: 6.

The shell 11 and the bearing frame body 6 are fixedly connected in a welding mode, sliding tracks are formed in the upper surface and the lower surface of the shell 11, and the gear strip column 10 is connected with the sliding tracks in a sliding mode.

Lifting rings 7 are fixedly arranged on four side faces and an upper face and a lower face of the hoisting hoist 2, and the lifting rings 7 are fixedly arranged at four corners of the top of the bearing frame body 6.

Saddle buckles are arranged at the two ends of the main rope 1, the bearing platform rope 8 and the auxiliary rope 3.

One end of the main rope 1 is connected with a lifting ring 7 at the top of the hoisting hoist 2, and the other end of the main rope is connected with a tower crane lifting hook during hoisting and climbing; one end of the auxiliary rope 3 is connected with a lifting ring 7 at the bottom of the hoisting hoist 2, and the other end is connected with the lifting ring 7 at the top of the bearing frame body 6.

The load bearing top plate 5 is made of square steel plate. The load-bearing top plate 5 simultaneously functions as a counterweight.

The two sets of the anti-falling blocking mechanisms 9 are arranged, the two sets of the anti-falling blocking mechanisms 9 are arranged on the bearing frame body 6 in a parallel and inverted mode, and the gear bars 10 of the two sets of the anti-falling blocking mechanisms 9 are positioned at two ends of a diagonal line of the bearing frame body 6.

The inner wall of the shell 11 is provided with a sliding track matched with the sliding block 15, and the top of the gear bar 10 is fixedly connected with the lower surface of the bearing top plate 5.

In the using process of the utility model, when the bearing platform needs to be lifted and climbed, the bearing platform rope 8 is tightened through a hoist hoisting device, the bearing top plate 5 is pulled upwards, the distance between the bearing top plate 5 and the bearing frame body 6 is increased, meanwhile, the gear column 10 also moves upwards to drive the large gear 19 to rotate, the pinion 18 coaxial with the large gear 19 rotates, the two inserting strips 17 move towards each other, the distance between the two sliding blocks 15 is shortened, the distance between the two hard rubber blocks 14 is also shortened, so that the friction force between the retarding anti-falling mechanism 9 and the wall body of the elevator shaft is reduced, and the bearing platform can be smoothly lifted upwards; when arriving the assigned position, use calabash hoisting equipment to loosen bearing platform rope 8, bearing roof 5 moves down under self action of gravity, the distance of bearing roof 5 and bearing support body 6 reduces, gear strip post 10 also moves down simultaneously, it is rotatory to drive gear wheel 19, rotatory with gear wheel 19 coaxial pinion 18, two slips 17 move away from each other, the distance between two sliding blocks 15 increases, the distance between two hard rubber blocks 14 also increases, thereby the increase is blocked the frictional force between mechanism 9 and the elevartor shaft wall body of preventing falling, thereby the fixed support body.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A falling-preventing bearing platform for an elevator shaft is characterized by comprising a bearing platform, a traction mechanism arranged at the top of the bearing platform and a blocking falling-preventing mechanism (9) arranged on the bearing platform, the bearing platform comprises a bearing frame body (6) and a bearing top plate (5) arranged above the bearing frame body (6), the traction mechanism comprises a hoisting hoist (2) arranged above the bearing platform, the upper surface of the hoisting hoist (2) is connected with a main rope (1), the lower surface of the hoisting hoist is connected with a bearing platform rope (8), four side surfaces of the hoisting hoist (2) are respectively connected with auxiliary ropes (3), the bearing platform rope (8) is connected between the hoisting hoist (2) and the bearing top plate (5), the auxiliary rope (3) is connected between the hoisting hoist (2) and the four corners of the top of the bearing frame body (6);

the blocking anti-falling mechanism (9) comprises a shell (11), a gear column (10) is vertically arranged in the shell (11), racks which are vertically distributed are arranged on one side of the gear column (10), a large gear (19) is meshed on one side of the gear column (10), the large gear (19) is vertically arranged, a small gear (18) is coaxially arranged on the large gear (19), horizontal inserting strips (17) are respectively arranged at the top and the bottom of the small gear (18), racks which are horizontally distributed are arranged on one side, facing the small gear (18), of the inserting strips (17), and the small gear (18) is meshed with the rack part on the inserting strips (17);

the blocking anti-falling mechanism (9) further comprises two sliding blocks (15) symmetrically arranged relative to a pinion (18), the sliding blocks (15) are connected with the inner portion of the shell (11) in a sliding mode, the two inserting strips (17) are fixedly arranged on the two opposite side faces of the sliding blocks (15), horizontal sliding plates (16) are fixedly arranged on the side faces of the sliding blocks (15) provided with the inserting strips (17), the two sliding plates (16) are respectively located above and below the inserting strips (17), a steel bar block (13) is fixedly arranged on one side, away from the pinion (18), of the sliding blocks (15), and a hard rubber block (14) is fixedly arranged on the outer portion of the steel bar block (13).

2. Anti-fall load-bearing platform for elevator shafts, according to claim 1, characterized in that said gearwheel (19) is coaxially provided with a bearing (12), the outer ring of said bearing (12) being fixedly connected to said housing (11).

3. The anti-falling bearing platform for the elevator shaft as claimed in claim 1, characterized in that the housing (11) is fixedly connected with the bearing frame body (6) by welding, the upper and lower surfaces of the housing (11) are provided with sliding rails, and the gear bar (10) is connected with the sliding rails in a sliding manner.

4. The anti-falling bearing platform for the elevator shaft as claimed in claim 1, wherein the hoisting hoist (2) is fixedly provided with hoisting rings (7) on four sides and two upper and lower sides, and the hoisting rings (7) are fixedly provided at four corners of the top of the bearing frame body (6).

5. Anti-fall load-bearing platform for elevator shaft according to claim 1, characterized in that the main rope (1), the load-bearing platform rope (8) and the secondary rope (3) are provided with saddles at both ends.

6. The anti-falling load-bearing platform for the elevator shaft as claimed in claim 1, wherein one end of the main rope (1) is connected with a lifting ring (7) at the top of the hoisting hoist (2), and the other end is connected with a tower crane hook for lifting and climbing; one end of the auxiliary rope (3) is connected with a lifting ring (7) at the bottom of the hoisting hoist (2), and the other end of the auxiliary rope is connected with the lifting ring (7) at the top of the bearing frame body (6).

7. Anti-fall load-bearing platform for elevator shafts, according to claim 1, characterized in that said load-bearing top plate (5) is made of square steel plate.

8. Anti-fall load-bearing platform for elevator shafts, according to claim 1, characterized in that said means (9) are provided in two sets, two sets of means (9) being placed in parallel and in opposition on said load-bearing frame (6), the gear bars (10) of two sets of means (9) being located at the two ends of the diagonal of the load-bearing frame (6).

9. Anti-fall load-bearing platform for elevator shaft according to claim 1, characterized in that the inner wall of the housing (11) is provided with sliding tracks cooperating with sliding blocks (15), the top of the gear bar (10) being fixedly connected with the lower surface of the load-bearing top plate (5).